-LRB- CNN -RRB- -- A German tourist was in critical condition after a shark severed her right arm while she snorkeled in Hawaii on Wednesday , authorities said .

The approximately 20-year-old woman , who was unconscious when first responders arrived , was taken to Maui Medical Center for treatment , according Lee Mainaga with the Maui Fire Department .

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The attack took place about 50 yards offshore at White Rock beach in Maui . The beach has been closed one mile on either side of where the attack happened .

Officials will assess on Thursday morning whether the beach can be reopened .

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This shark attack is the fourth in Maui this year , with two happening on the same day in February , and the other in late July .

While shark attacks have been on the uptick in recent years , according to the University of Florida , the fatality rate in the United States is just 2 % .

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This is the fourth shark attack in Maui this year

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It took place about 50 yards offshore

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Officials will decide Thursday if the beach can reopen